Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Appendix B - Exercise Set: 62

Answer

$\frac{1}{r^{11}}$

Work Step by Step

Use the quotient rule and the definition of negative exponents. $\frac{r^{-15}}{r^{-4}}=r^{-15-(-4)}=r^{-11}=\frac{1}{r^{11}}$
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